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Walker, Byron <br />From: Scott, Crellin (KEC) [Crellin.Scott@kennecottenergy.com] <br />Sent: Monday, January 26, 2004 8:06 AM <br />To: David Berry (E-mail); Hernadez Dan (E-mail); P. E. Byron G. Walker (E-mail); Sandy Brown <br />(E-mail) <br />Subject: FW: Colowyo's Highwall Miner - Great News! <br />Hi Everyone I got an e-mail on the highwall miner and the progress to date <br />Just wanted to share with you the latest news in our highwall miner. It sounds like <br />history is in the making for Colorado. The CDMG has played a significant role in this, by <br />your expeditious review and approval of the plans. We thank you for your support and <br />assistance in this matter. <br />Crellin Scott <br />New EMail: crellin.scott@kennecottenergy.com <br />CONFIDENTIAL and PROPRIETARY information of Kennecott Energy Company (C) 2002. All rights <br />reserved. This work contains information that is confidential and proprietary to Kennecott <br />Energy Company. The senders contact information is also protected by the Kennecott Energy <br />Company Data Protection Policy, and should not be circulated. Removal of this notice, use, <br />transfer, republication, disclosure andlor copying of all or part of this message, or its <br />attachments, is strictly prohibited, except with the express, written permission of <br />Kennecott Energy Company. If you have received this e-mail message in error please return <br />it and contact Crellin Scott at 970-829-1532. <br />> -----Original Message----- <br />> From: Garcia, Juan (KEC) <br />> Sent: Saturday, January 29, 2004 9:49 PM <br />> To: KEC Colowyo <br />> Subject: Colowyo's Highwall Miner - Great News! <br />> Historical and Record Setting Performance at Colowyo! <br />> Unbeknownst to many, Colowyo has quietly been making KEC, Rio Tinto, and State of <br />Colorado history this week, with the commencement of Highwall Mining in the East Pit "E" <br />seam on January 20th. To the best of my knowledge, Colowyo's utilization of Highwall <br />Mining Technology marks the first time that highwall mining has been undertaken within the <br />company and in the state. Mined holes depth of penetration, tonnage being produced, and a <br />host of other records are being established daily, with the outlook by all those involved <br />being that more good things are yet to come! <br />> A few of the highlights are as follows: <br />> * As of noon Saturday January 24th, three holes or entries have been mined with the <br />fourth underway. Depth of penetration for the holes has been 990', 1240', and 1140' - a <br />target depth of 1200 feet was projected. <br />> * Mining height and width is 6.5 feet high by 11.5 feet wide. <br />> One entry approximately 1200 feet deep is slated to be mined every 12 hour shift. <br />> * Approximately 200 holes are slated to be mined across the length of the East Pit <br />"E" seam. <br />> * Daily tonnage with two, 12 hour production shifts could range between 6500 -7500 <br />tons per day. Number of production days per month yet to be determined. <br />> * Underground hole conditions (roof/floor/ribs) have been excellent with no <br />instability issues encountered so far. <br />> * Highwall conditions are very stable and frozen. Spoil conditions are very stable. <br />> * Methane concentrations and water inflow into the holes are non issues. <br />> * Coal quality is acceptable, with minor changes being implemented to optimize quality <br />and recovery. <br />> * Safety record has been outstanding to date for all activities associated with <br />machine mobilization, erection, troubleshooting, and coal production. <br />> * January winter weather conditions have been cold (single digit lows, Fahrenheit) but <br />1 <br />